University of Chicago
5801 South Ellis Avenue
Chicago, IL 60637 773/702-8602
NSF Program(s):
SPECIAL PROGRAMS IN ASTRONOMY
Field Application(s):
Program Reference Code(s):
OTHR,1217,1206,1187,1045,0000
Program Element Code(s):
1219
ABSTRACT
Proposal ID: AST-0239759
Institution: University of Chicago
PI: Kravtsov, Andrey
Dr. Andrey Kravtsov will use his CAREER award at the University of Chicago to pursue an understanding of how galaxies and galaxy clusters form within the framework of the Big Bang cosmology. Comparisons of data and theoretical predictions show that Cold Dark Matter models work remarkably well at scales larger than one megaparsec, but have serious difficulties in explaining an increasing number of observations at smaller scales. Dr. Kravtsov will model the formation of galaxy clusters and individual galaxies, including important physical processes such as star formation, stellar energy feedback, and heavy element enrichment, at an unprecedented level of sophistication and detail. High-resolution simulations will be used to study the effects of stellar feedback and metal enrichment on the properties of galaxies, the intergalactic medium, and intracluster gas of galaxy clusters as well as possible observational signatures of these effects. The improved feedback models will be used in a larger set of lower-resolution simulations of galaxies and galaxy clusters to evaluate the statistical effects of feedback on the morphology and structural properties of galaxies and thermal properties of the intracluster medium. He will make both the codes and the results of the simulations available to the scientific community.
Cosmology, and the field of structure formation in particular, is an exciting subject with broad popular appeal. However, currently there are very few resources concerning the formation of large-scale structure available to educators and the public. Dr. Kravtsov will integrate his research projects into education and outreach by (1) working to deliver results of research in the area of structure formation as both public lectures and high-quality visualizations for educators and the general public; (2) involving undergraduate and graduate students in the proposed research activities; (3) developing new projects and classes introducing students to modern computational techniques and algorithms.
PUBLICATIONS PRODUCED AS A RESULT OF THIS RESEARCH Next
(Showing: 1 - 20 of 35).
Allgood, B; Flores, RA; Primack, JR; Kravtsov, AV; Wechsler, RH; Faltenbacher, A; Bullock, JS.
"The shape of dark matter haloes: dependence on mass, redshift, radius and formation,"
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,
v.367,
2006,
p. 1781
- 1796.
Chen, J; Kravtsov, AV; Keeton, CR.
"Lensing optical depths for substructure and isolated dark matter halos,"
ASTROPHYSICAL JOURNAL,
v.592,
2003,
p. 24
- 31.
Chen, J; Kravtsov, AV; Prada, F; Sheldon, ES; Klypin, AA; Blanton, MR; Brinkmann, J; Thakar, AR.
"Constraining the projected radial distribution of galactic satellites with the Sloan Digital Sky Survey,"
ASTROPHYSICAL JOURNAL,
v.647,
2006,
p. 86
- 101.
Conroy, C; Wechsler, RH; Kravtsov, AV.
"Modeling luminosity-dependent galaxy clustering through cosmic time,"
ASTROPHYSICAL JOURNAL,
v.647,
2006,
p. 201
- 214.
Conroy, C; Wechsler, RH; Kravtsov, AV.
"The hierarchical build-up of massive galaxies and the intracluster light since z=1,"
ASTROPHYSICAL JOURNAL,
v.668,
2007,
p. 826
- 838.
Faltenbacher, A; Kravtsov, AV; Nagai, D; Gottlober, S.
"Supersonic motions of galaxies in clusters,"
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,
v.358,
2005,
p. 139
- 148.
Flores, RA; Allgood, B; Kravtsov, AV; Primack, JR; Buote, DA; Bullock, JS.
"The shape of galaxy cluster dark matter haloes: systematics of its imprint on cluster gas and comparison to observations,"
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,
v.377,
2007,
p. 883
- 896.
Gnedin, NY; Kravtsov, AV.
"Fossils of reionization in the local group,"
ASTROPHYSICAL JOURNAL,
v.645,
2006,
p. 1054
- 1061.
Gnedin, NY; Kravtsov, AV; Chen, HW.
"Escape of ionizing radiation from high-redshift galaxies,"
ASTROPHYSICAL JOURNAL,
v.672,
2008,
p. 765
- 775.
Gnedin, OY; Kravtsov, AV; Klypin, AA; Nagai, D.
"Response of dark matter halos to condensation of baryons: Cosmological simulations and improved adiabatic contraction model,"
ASTROPHYSICAL JOURNAL,
v.616,
2004,
p. 16
- 26.
Hagan, B; Ma, CP; Kravtsov, AV.
"Impact of dark matter substructure on the matter and weak-lensing power spectra,"
ASTROPHYSICAL JOURNAL,
v.633,
2005,
p. 537
- 541.
Kazantzidis, S; Kravtsov, AV; Zentner, AR; Allgood, B; Nagai, D; Moore, B.
"The effect of gas cooling on the shapes of dark matter halos,"
ASTROPHYSICAL JOURNAL,
v.611,
2004,
p. L73
- L76.
Kazantzidis, S; Zentner, AR; Kravtsov, AV.
"The robustness of dark matter density profiles in dissipationless mergers,"
ASTROPHYSICAL JOURNAL,
v.641,
2006,
p. 647
- 664.
Klypin, A; Hoffman, Y; Kravtsov, AV; Gottlober, S.
"Constrained simulations of the real universe: The local supercluster,"
ASTROPHYSICAL JOURNAL,
v.596,
2003,
p. 19
- 33.
Kravtsov, AV.
"On the origin of the global Schmidt law of star formation,"
ASTROPHYSICAL JOURNAL,
v.590,
2003,
p. L1
- L4.
Kravtsov, AV; Berlind, AA; Wechsler, RH; Klypin, AA; Gottlober, S; Allgood, B; Primack, JR.
"The dark side of the halo occupation distribution,"
ASTROPHYSICAL JOURNAL,
v.609,
2004,
p. 35
- 49.
Kravtsov, AV; Gnedin, OY.
"Formation of globular clusters in hierarchical cosmology,"
ASTROPHYSICAL JOURNAL,
v.623,
2005,
p. 650
- 665.
Kravtsov, AV; Gnedin, OY; Klypin, AA.
"The tumultuous lives of galactic dwarfs and the missing satellites problem,"
ASTROPHYSICAL JOURNAL,
v.609,
2004,
p. 482
- 497.
Kravtsov, AV; Nagai, D; Vikhlinin, AA.
"Effects of cooling and star formation on the baryon fractions in clusters,"
ASTROPHYSICAL JOURNAL,
v.625,
2005,
p. 588
- 598.
Kravtsov, AV; Vikhlinin, A; Nagai, D.
"A new robust low-scatter X-ray mass indicator for clusters of galaxies,"
ASTROPHYSICAL JOURNAL,
v.650,
2006,
p. 128
- 136.
